diff options
author | Jack Lloyd <jack@randombit.net> | 2017-08-04 15:22:33 -0400 |
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committer | Jack Lloyd <jack@randombit.net> | 2017-08-04 15:22:33 -0400 |
commit | 87fcd69b587ccd60c5f248b40003cf9a0a558a53 (patch) | |
tree | c558cab7be5e591a36d74c3f8948c018a1c89bb7 /src/lib/pubkey/sm2/sm2_enc.h | |
parent | 58b1f7cc90b3e5c8a4bbff7adf2c001db0ef4d21 (diff) |
Add SM2 encryption scheme
This is a contribution from Ribose Inc (@riboseinc)
Diffstat (limited to 'src/lib/pubkey/sm2/sm2_enc.h')
-rw-r--r-- | src/lib/pubkey/sm2/sm2_enc.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/lib/pubkey/sm2/sm2_enc.h b/src/lib/pubkey/sm2/sm2_enc.h new file mode 100644 index 000000000..f8da6a27f --- /dev/null +++ b/src/lib/pubkey/sm2/sm2_enc.h @@ -0,0 +1,90 @@ +/* +* SM2 Encryption +* (C) 2017 Ribose Inc +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#ifndef BOTAN_SM2_ENC_KEY_H__ +#define BOTAN_SM2_ENC_KEY_H__ + +#include <botan/ecc_key.h> + +namespace Botan { + +/** +* This class represents a public key used for SM2 encryption +*/ +class BOTAN_DLL SM2_Encryption_PublicKey : public virtual EC_PublicKey + { + public: + + /** + * Create a public key from a given public point. + * @param dom_par the domain parameters associated with this key + * @param public_point the public point defining this key + */ + SM2_Encryption_PublicKey(const EC_Group& dom_par, + const PointGFp& public_point) : + EC_PublicKey(dom_par, public_point) {} + + /** + * Load a public key. + * @param alg_id the X.509 algorithm identifier + * @param key_bits DER encoded public key bits + */ + SM2_Encryption_PublicKey(const AlgorithmIdentifier& alg_id, + const std::vector<uint8_t>& key_bits) : + EC_PublicKey(alg_id, key_bits) {} + + /** + * Get this keys algorithm name. + * @result this keys algorithm name + */ + std::string algo_name() const override { return "SM2_Enc"; } + + std::unique_ptr<PK_Ops::Encryption> + create_encryption_op(RandomNumberGenerator& rng, + const std::string& params, + const std::string& provider) const override; + protected: + SM2_Encryption_PublicKey() = default; + }; + +/** +* This class represents a private key used for SM2 encryption +*/ +class BOTAN_DLL SM2_Encryption_PrivateKey : public SM2_Encryption_PublicKey, + public EC_PrivateKey + { + public: + + /** + * Load a private key + * @param alg_id the X.509 algorithm identifier + * @param key_bits ECPrivateKey bits + */ + SM2_Encryption_PrivateKey(const AlgorithmIdentifier& alg_id, + const secure_vector<uint8_t>& key_bits); + + /** + * Create a private key. + * @param rng a random number generator + * @param domain parameters to used for this key + * @param x the private key (if zero, generate a new random key) + */ + SM2_Encryption_PrivateKey(RandomNumberGenerator& rng, + const EC_Group& domain, + const BigInt& x = 0); + + bool check_key(RandomNumberGenerator& rng, bool) const override; + + std::unique_ptr<PK_Ops::Decryption> + create_decryption_op(RandomNumberGenerator& rng, + const std::string& params, + const std::string& provider) const override; + }; + +} + +#endif |